Fire-place



(No'Mdel.) 3 Sheets- Sheet 1.

G." E. SHARPB.

PIRE PLACE. No. 329,224. Patented Oct. 27, 1885.

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3 sheets-sheet 2.

G. E. SHARPE.

(No Model.)

PIRE PLAGE.

Patented Oct. 27, 1885.

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i v UNITED STATES PATENT OFFICE.

GEORGE E. SHARPE, OF STEUBENVILLE, OHIO.`

FIRE-PLACE.

SPECIFICATION forming part of Letters Patent No. 329,224, dated October27, 1885,

Application filed June 18, 1884.

To a/ZZ whom it may concern.-

Beit known that I, GEORGE E. SHAEPE, a citizen of the United States,residing at Steubenville, in the county of Jefferson and State of Ohio,have invented certain new andy useful Improvements in Gas and SmokeConsuming Open Fire-Places, of which the following is a specification,reference being made to the accompanying drawings, in which- Figure lisa front elevation of my improved gas and smoke consuming open nre-place.Fig. 2 is a vertical section of the same online :n :v of Fig. l. Fig. 3is a rear perspective view of the improved open fireplace complete. .Fig4 isa perspective view of the rear shell detached. Fig. 5 is a rearperspective view of the open lire-place with the rear shell removed.Fig. 6 is a vertical section on the line y y of Figs. 2 and 3.

The object of my invention is to distribute and retard the gases andsmoke arising from the combustion of fuel and to hold them under theaction of the fire, so that they will be consumed, and also to minglewith the gases and smoke a supply of hot air in the presence of the iirefor the purpose of promoting'their combustion.

My invention consists in a novel construction and combination ofdevices, which may bereadily understood from the following particulardescription, in connection with the accompanying drawings.

Referring to the drawings, the letter A indicates a main shell, whichmay be made of any suitable refractory material, preferably cast orwrought iron. The rear portion of its top wall is inclined, as shown ata, and extends from the back Wall forward to the l.rear wall, b of anelevated or dome-like portion ofthe casing, which has aline-opening, b',extending from side to side. The 'main shell sits upon a hollow base, C,the top wall, c, of which forms a hearth-plate, under which air may passthrough openings d in the front wall of the hollow base. Partiallyembracing the rear portion of the main shell,and permanently attachedthereto, is a casing, E, (see Figs. 2 and 5,) having an inclined topWall, e, rear wall, e', and end walls, e2 e2, standing at o alittledistance from the walls of the main Serial N0.135,348. (No model.)

shell, so as to leave an intervening fluespace, which is closed atbottom and in front, but o pen at top, and communicates with the inte--rior of the mai-n shell by openings f in the walls of the latter.Embracing the entire rear portion of the main shell, and covering-"thecasing E,is a rear shell, G, having a rear wall, g, inclined top wall,g', lextending from the wall g to the rear wall, b, of the dome, (andpreferably lapping the ends of the dome, as at g2 g) and end walls, asat g3. There is a Hue-space between the walls of this rear shell and themain shell, and the casing-E and Vthe space below the hearth-plate ccommuni- Gates with this fine-space by means of openings d in saidhearth-plate. rIhe under surface of the top wall, a, of the main shellhas a lining, H, of {ire-brick (or any other suitable refractorymaterial) lying directly over the grate or Ere-chamber, and pro- (SeeFigs. 2 and 6;) l

vided with wide downwardprojections or.

teeth h, arranged in rows, so that the teeth of each row stand oppositethe spaces between teeth of adjacent rows, and thus break up the surfaceof the lining into obstructed passages,

through which the flow of gases and smoke is retarded,and thus subjectedfor alonger period to the action of the iire than if allowed to passfreely to the opening b. From the ends of the top lining, H,sidelinings, I, extend downward, and have'their rearwardly and upwardlyinclined lower edges resting upon oblique shelves k k, which projectinwardly beyond said side linings,and have their inner edges bentdownward to take over and support the lower side linings, L L, of theiirechamber, the lower edges of which rest upon shelves m m. These sidelinings of the fire-chamber stand out from the side walls of the mainshell, and are kept at a proper distance therefrom' by studs a a,projecting from said walls'. The rear edges of the side linings joinwith a back lining, L', which rests upon a rear shelf, m', and stands ata proper distance from the rear wall, a', of the main shell to leave aflue space. Its rear surface abuts against studs n a', projecting fromthe shell, and its upper edge reaches snugly up to a rear horizontalshelf, k', which joins with the oblique side shelves, la k. At the topsof both the side linings and IOO back linings of the fire-chamber areopenings Z, forming communicating passages between the top of thelire-chamber and the flue-spaces behind the linings. In the shelves m mand m', which support the re-chamber linings, are openings q, allowingcommunication between the space under the lire-chamber and the spacesbehind the linings. A short distance above the fire-chamber is aflatwise horizontal deectingplate, P, the ends of which rest uponsuitable ledges projecting from the upper side linings, I I. The purposeof this plate is to detleet the products of combustion in a direction tostrike the top lining, H, so that the smoke and gases will bedistributed and retarded so as to be subjected to the heat of the{ire-chamber and consumed instead of passing directly upward and 0E tothe chimney through the opening b. The grate-bottom R, basket S, andash-pit screen T may be of any suitable or well-known construction andsupported in any desired manner, and as they form no part of myimprovement they need not be particularly described.

lThe operation of my improved smoke and gas consuming open fire-place isas follows: When a fire has been started in the iirechamber, theproducts of combustion which arise therefrom-that is, the smoke andgasesare detlected by the plate P in the direction of the arrow No. l,and pass among the teeth h toward the opening b. A draft is thusstarted, which causes cold air to enter through the openings d and topass under the hearthplate c in the direction of the arrows No. 2, andthence up through the openings d and between the casing E and the rearshell. At the top of the casing E it turns and passes downward betweensaid casing and the main shell to the openingsf, where it divides,aportion` going downward through the openings g to the ash pit or spaceunder the nre-chamber, and the other portion' rising and passing throughthe openings Zinto the top of the lirechamber. In its passage throughthese flues the air becomes heated, andjoining with the gases escapingfrom the lire promotes their combustion. The air will only pass downunder the fire-chamber in. the direction of arrows No.` 3 when the usualregister in the ash-pit screen4 is closed, which will usually be doneafter the fire is well started. Ihave found in practice that by causingthe heated airto be mingled with the smoke and gases rising from thefuel and retarding and dispersing these gases,smoke, and hot air bymeans of the teeth h the gases and smoke are very efficiently consumed.

I am aware that a cooking-stove has had the direct back wall of itsireehamber provided with teeth to hold the fuel off from the wallplateand protect said plate from rapidburning away, and I lay no claim toastove so constructed. The overhanging toothed lining in my lire-placehas quite a different function 6 from the said toothed back wall, inthat the teeth of my lining intercept and retard the gases and smokeafter they have escaped from the fuel-bed and promote their combustionin the formv of llame.

Having now described my invention and explained its operation, what Iclaim isl. The combination, with the main shell provided with afire-chamber and elevated hearth-plate having openings to admit airbeneath, of the rear shell and the intermediate casing, E, open at topand closed at bottom, suitable openings being provided to permit'ar torise from below the hearth-plate into the space between the main andrear shells and to pass from between the intermediate casing and mainshell to the lire-chamber, substantially as described.

2. The combination, with the main shell, its iire-chamber,and obliquetop lining provided with flat teeth l1., arranged in tortuousor zigzagrows, of the deflecting-plate P, projecting from the front rearwardlytoward the lower edge of said lining, as set forth.

3,. The combination of the main shell having the oblique shelves k andrear straight Shelf', k', and provided with openings f, the trechamberlinings arranged below said shelves, and having openings at top, therear shell and intermediate casing, and the elevated hearthplate withopenings for access of air beneath it, and provided with openings toadmit air to the space between the main and rear shells, substantiallyas described.

4. The combination, with the main shell mounted on the elevatedhearth-plate, its tirechamber,and oblique top lining provided with flatteeth la, arranged in tortuous or zigzag rows, ofthe deflecting-plate P,projecting from the front rearwardly toward the lower edge ofsaidlining, and the rear shell and intermediate casing constructed, asdescribed, with intervening spaces connected with the space under thehearth-plate and with the irechamber, substantially as set forth.

GEORG-E E. SIIARPE.`

Witnesses:

Gao. L. CONN, JNO. W. Hanson.

I OO

